Dr. Catherine Armbruster

Assistant Professor

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Biography

Catherine Armbruster is an Assistant Professor in the Department of Biological Sciences at Carnegie Mellon University. She focuses on bacterial genetics, host-pathogen interactions, and the evolutionary genomics of opportunistic pathogens, particularly Pseudomonas aeruginosa. Her research involves exploring how bacteria and biofilms evolve within built environments and how these changes affect chronic infections and antimicrobial resistance, especially in the context of cystic fibrosis. Armbruster's lab aims to identify traits that are crucial for the persistence of these pathogens and develop strategies to prevent and treat infections. By applying experimental evolution and studying the impacts of social and environmental factors on microbial behavior, she advances public health and therapeutic approaches to combat infections caused by opportunistic pathogens. In her teaching and laboratory practices, she emphasizes diversity, kindness, and inclusivity, believing these elements are vital for fostering an innovative and intellectually stimulating learning environment.

Research Interests

Requirements for Carnegie Mellon University

Doctorate Program
Requirements
GPA Requirement
Required:3.5
GRE General
Verbal
Required:158
Quantitative
Required:149
Analytical Writing
Required:4
Overall
Required:4
Prerequisites
Bachelor's degree in Psychology or related field Research experience/publications
Application Checklist
  • Online application
  • Statement of Purpose
  • Three letters of recommendation
  • Transcripts
  • GRE scores (optional but reported in profile)
  • English Proficiency (TOEFL/IELTS/Duolingo)
Specialization Notes

Admission is extremely competitive with no strict GPA cut-offs; holistic review is used.